Season six kicks off in space, where Howard is caught in an argument between Bernadette and his mom. Back on Earth, Sheldon decides to hire, Alex, a young female assistant which makes Amy feel threatened. Meanwhile, Howard and Penny make strides to define their relationship and Raj attempts to find love. Find out what surprises are in store for everyone, once Howard returns home in these 24 must-watch episodes.

Includes the sixth season on Blu-ray, DVD and UltraViolet so you can enjoy the show on many different compatible devices.

Special Features

One Small Step for Wolowitz, one Giant Leap for Primetime - We go behind the scenes with the cast and real life astronauts Mike Massimino and Buzz Aldrin as they discuss Howard Wolowitz's mission on the International Space Station.

Houston, We Have A Sit-Com - Join the cast as they surprise Astronaut Joe Acaba with a live SKYPE as he circles the earth in the International Space Station.